A bug in the standard library ScalarMult implementation of curve...
Vulnerability Description
A bug in the standard library ScalarMult implementation of curve P-256 for amd64 architectures in Go before 1.7.6 and 1.8.x before 1.8.2 causes incorrect results to be generated for specific input points. An adaptive attack can be mounted to progressively extract the scalar input to ScalarMult by submitting crafted points and observing failures to the derive correct output. This leads to a full key recovery attack against static ECDH, as used in popular JWT libraries.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://groups.google.com/d/msg/golang-announce/B5ww0iFt1_Q/TgUFJV14BgAJ
- https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9c
- https://access.redhat.com/errata/RHSA-2017:1859
- http://lists.opensuse.org/opensuse-updates/2017-06/msg00080.html
- http://lists.opensuse.org/opensuse-updates/2017-06/msg00079.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1455191
- https://github.com/golang/go/issues/20040
- https://go-review.googlesource.com/c/41070/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZH4T47ROLZ6YEZBDVXVS2KISTDMXAPS/
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.